/**
  ******************************************************************************
  * @file    Audio/Audio_playback_and_record/Src/usbh_conf.c
  * @author  MCD Application Team
  * @brief   USB Host configuration file.
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2016 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */
/* Includes ------------------------------------------------------------------*/
#include "stm32f7xx_hal.h"
#include "usbh_core.h"

/* Private define ------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
HCD_HandleTypeDef hhcd;
#define OTG_FS1_POWER_SWITCH_PORT                 GPIOG  
#define OTG_FS1_POWER_SWITCH_PIN                  GPIO_PIN_8

#define OTG_HS1_POWER_SWITCH_PORT                 GPIOH  
#define OTG_HS1_POWER_SWITCH_PIN                  GPIO_PIN_12

/*******************************************************************************
HCD BSP Routines
*******************************************************************************/
/**
* @brief  Initializes the HCD MSP.
* @param  hhcd: HCD handle
* @retval None
*/
void HAL_HCD_MspInit(HCD_HandleTypeDef *hhcd)
{
  GPIO_InitTypeDef  GPIO_InitStruct;
  
  if(hhcd->Instance == USB_OTG_FS)
  {
    /* Configure USB FS GPIOs */
        __HAL_RCC_GPIOA_CLK_ENABLE();
        
    /* Configure DM DP Pins */
    GPIO_InitStruct.Pin = (GPIO_PIN_11 | GPIO_PIN_12);
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF10_OTG_FS;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); 

    __HAL_RCC_GPIOG_CLK_ENABLE();
    
    GPIO_InitStruct.Pin = OTG_FS1_POWER_SWITCH_PIN;
    GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_OD;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    HAL_GPIO_Init(OTG_FS1_POWER_SWITCH_PORT, &GPIO_InitStruct); 
    
    
    __HAL_RCC_GPIOH_CLK_ENABLE();
    
    GPIO_InitStruct.Pin = OTG_HS1_POWER_SWITCH_PIN;
    GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    HAL_GPIO_Init(OTG_HS1_POWER_SWITCH_PORT, &GPIO_InitStruct); 
    
    
    /* Enable USB FS Clock */
    __HAL_RCC_USB_OTG_FS_CLK_ENABLE();
    
    /* Set USBFS Interrupt priority */
    HAL_NVIC_SetPriority(OTG_FS_IRQn, 5, 0);
    
    /* Enable USBFS Interrupt */
    HAL_NVIC_EnableIRQ(OTG_FS_IRQn);
  }
  else if(hhcd->Instance == USB_OTG_HS)
  {
    /* Enable HS PHY Clock */
    __HAL_RCC_OTGPHYC_CLK_ENABLE();
    
    /* Enable the ULPI Clock */
    __HAL_RCC_USB_OTG_HS_ULPI_CLK_ENABLE();
    
    /* Enable USB HS Clocks */
    __HAL_RCC_USB_OTG_HS_CLK_ENABLE();
    
    /* Set USBHS Interrupt to the lowest priority */
    HAL_NVIC_SetPriority(OTG_HS_IRQn, 5, 0);
    
    /* Enable USBHS Interrupt */
    HAL_NVIC_EnableIRQ(OTG_HS_IRQn);
  }
}

/**
* @brief  DeInitializes the HCD MSP.
* @param  hhcd: HCD handle
* @retval None
*/
void HAL_HCD_MspDeInit(HCD_HandleTypeDef *hhcd)
{
  if(hhcd->Instance == USB_OTG_FS)
  {  
    /* Disable USB FS Clock */
    __HAL_RCC_USB_OTG_FS_CLK_DISABLE();
    __HAL_RCC_SYSCFG_CLK_DISABLE();
     
  }
  else if(hhcd->Instance == USB_OTG_HS)
  {  
    /* Disable USB HS Clocks */ 
    __HAL_RCC_USB_OTG_HS_CLK_DISABLE();
    __HAL_RCC_SYSCFG_CLK_DISABLE();
     
  } 
}

/*******************************************************************************
LL Driver Callbacks (HCD -> USB Host Library)
*******************************************************************************/

/**
* @brief  SOF callback.
* @param  hhcd: HCD handle
* @retval None
*/
void HAL_HCD_SOF_Callback(HCD_HandleTypeDef *hhcd)
{
  USBH_LL_IncTimer (hhcd->pData);
}

/**
* @brief  Connect callback.
* @param  hhcd: HCD handle
* @retval None
*/
void HAL_HCD_Connect_Callback(HCD_HandleTypeDef *hhcd)
{
  USBH_LL_Connect(hhcd->pData);
}

/**
  * @brief  Disconnect callback.
  * @param  hhcd: HCD handle
  * @retval None
  */
void HAL_HCD_Disconnect_Callback(HCD_HandleTypeDef *hhcd)
{
  USBH_LL_Disconnect(hhcd->pData);
}

/**
  * @brief  Port Port Enabled callback.
  * @param  hhcd: HCD handle
  * @retval None
  */
void HAL_HCD_PortEnabled_Callback(HCD_HandleTypeDef *hhcd)
{
  USBH_LL_PortEnabled(hhcd->pData);
} 


/**
  * @brief  Port Port Disabled callback.
  * @param  hhcd: HCD handle
  * @retval None
  */
void HAL_HCD_PortDisabled_Callback(HCD_HandleTypeDef *hhcd)
{
  USBH_LL_PortDisabled(hhcd->pData);
} 


/**
* @brief  Notify URB state change callback.
* @param  hhcd: HCD handle
* @param  chnum: Channel number 
* @param  urb_state: URB State
* @retval None
*/
void HAL_HCD_HC_NotifyURBChange_Callback(HCD_HandleTypeDef *hhcd, uint8_t chnum, HCD_URBStateTypeDef urb_state)
{
  /* To be used with OS to sync URB state with the global state machine */  
}

/*******************************************************************************
LL Driver Interface (USB Host Library --> HCD)
*******************************************************************************/
/**
* @brief  USBH_LL_Init 
*         Initialize the Low Level portion of the Host driver.
* @param  phost: Host handle
* @retval USBH Status
*/
USBH_StatusTypeDef USBH_LL_Init(USBH_HandleTypeDef *phost)
{ 
#ifdef USE_USB_FS  
  /*Set LL Driver parameters */
  hhcd.Instance = USB_OTG_FS;
  hhcd.Init.Host_channels = 11; 
  hhcd.Init.dma_enable = 0;
  hhcd.Init.low_power_enable = 0;
  hhcd.Init.phy_itface = HCD_PHY_EMBEDDED; 
  hhcd.Init.Sof_enable = 0;
  hhcd.Init.speed = HCD_SPEED_FULL;
  hhcd.Init.vbus_sensing_enable = 1;
  /* Link The driver to the stack */
  hhcd.pData = phost;
  phost->pData = &hhcd;
  /*Initialize LL Driver */
  HAL_HCD_Init(&hhcd);
#endif 
#ifdef USE_USB_HS  
  /*Set LL Driver parameters */
  hhcd.Instance = USB_OTG_HS;
  hhcd.Init.Host_channels = 11; 
  hhcd.Init.dma_enable = 0;
  hhcd.Init.low_power_enable = 0;
  hhcd.Init.phy_itface = USB_OTG_HS_EMBEDDED_PHY; 
  hhcd.Init.Sof_enable = 0;
  hhcd.Init.speed = HCD_SPEED_HIGH;
  hhcd.Init.use_external_vbus = 1;  
  /* Link The driver to the stack */
  hhcd.pData = phost;
  phost->pData = &hhcd;
  /*Initialize LL Driver */
  HAL_HCD_Init(&hhcd);

#endif 
 
  USBH_LL_SetTimer (phost, HAL_HCD_GetCurrentFrame(&hhcd));
  
  return USBH_OK;
}

/**
* @brief  De-Initializes the Low Level portion of the Host driver.
* @param  phost: Host handle
* @retval USBH Status
*/
USBH_StatusTypeDef USBH_LL_DeInit(USBH_HandleTypeDef *phost)
{
  HAL_HCD_DeInit(phost->pData);
  return USBH_OK; 
}

/**
* @brief  Starts the Low Level portion of the Host driver.   
* @param  phost: Host handle
* @retval USBH Status
*/
USBH_StatusTypeDef USBH_LL_Start(USBH_HandleTypeDef *phost)
{
  HAL_HCD_Start(phost->pData);
  return USBH_OK; 
}

/**
* @brief  Stops the Low Level portion of the Host driver.
* @param  phost: Host handle
* @retval USBH Status
*/
USBH_StatusTypeDef USBH_LL_Stop(USBH_HandleTypeDef *phost)
{
  HAL_HCD_Stop(phost->pData);
  return USBH_OK; 
}

/**
* @brief  Returns the USB Host Speed from the Low Level Driver.
* @param  phost: Host handle
* @retval USBH Speeds
*/
USBH_SpeedTypeDef USBH_LL_GetSpeed(USBH_HandleTypeDef *phost)
{
  USBH_SpeedTypeDef speed = USBH_SPEED_FULL;
  
  switch (HAL_HCD_GetCurrentSpeed(phost->pData))
  {
  case 0: 
    speed = USBH_SPEED_HIGH;
    break;
    
  case 1: 
    speed = USBH_SPEED_FULL;    
    break;
    
  case 2: 
    speed = USBH_SPEED_LOW;   
    break;
    
  default:  
    speed = USBH_SPEED_FULL;    
    break;    
  }
  return speed;
}

/**
* @brief  Resets the Host Port of the Low Level Driver.
* @param  phost: Host handle
* @retval USBH Status
*/
USBH_StatusTypeDef USBH_LL_ResetPort (USBH_HandleTypeDef *phost) 
{
  HAL_HCD_ResetPort(phost->pData);
  return USBH_OK; 
}

/**
* @brief  Returns the last transferred packet size.
* @param  phost: Host handle
* @param  pipe: Pipe index   
* @retval Packet Size
*/
uint32_t USBH_LL_GetLastXferSize(USBH_HandleTypeDef *phost, uint8_t pipe)  
{
  return HAL_HCD_HC_GetXferCount(phost->pData, pipe);
}

/**
* @brief  Opens a pipe of the Low Level Driver.
* @param  phost: Host handle
* @param  pipe: Pipe index
* @param  epnum: Endpoint Number
* @param  dev_address: Device USB address
* @param  speed: Device Speed 
* @param  ep_type: Endpoint Type
* @param  mps: Endpoint Max Packet Size                 
* @retval USBH Status
*/
USBH_StatusTypeDef USBH_LL_OpenPipe(USBH_HandleTypeDef *phost, 
                                    uint8_t pipe,
                                    uint8_t epnum,                                      
                                    uint8_t dev_address,
                                    uint8_t speed,
                                    uint8_t ep_type,
                                    uint16_t mps)
{
  HAL_HCD_HC_Init(phost->pData,
                  pipe,
                  epnum,
                  dev_address,
                  speed,
                  ep_type,
                  mps);
  return USBH_OK; 
}

/**
* @brief  Closes a pipe of the Low Level Driver.
* @param  phost: Host handle
* @param  pipe: Pipe index               
* @retval USBH Status
*/
USBH_StatusTypeDef USBH_LL_ClosePipe(USBH_HandleTypeDef *phost, uint8_t pipe)   
{
  HAL_HCD_HC_Halt(phost->pData, pipe);
  return USBH_OK; 
}

/**
* @brief  Submits a new URB to the low level driver.
* @param  phost: Host handle
* @param  pipe: Pipe index    
*          This parameter can be a value from 1 to 15
* @param  direction: Channel number
*          This parameter can be one of these values:
*           0: Output 
*           1: Input
* @param  ep_type: Endpoint Type
*          This parameter can be one of these values:
*            @arg EP_TYPE_CTRL: Control type
*            @arg EP_TYPE_ISOC: Isochronous type
*            @arg EP_TYPE_BULK: Bulk type
*            @arg EP_TYPE_INTR: Interrupt type
* @param  token: Endpoint Type
*          This parameter can be one of these values:
*            @arg 0: PID_SETUP
*            @arg 1: PID_DATA
* @param  pbuff: pointer to URB data
* @param  length: length of URB data
* @param  do_ping: activate do ping protocol (for high speed only)
*          This parameter can be one of these values:
*           0: do ping inactive 
*           1: do ping active 
* @retval USBH Status
*/
USBH_StatusTypeDef USBH_LL_SubmitURB(USBH_HandleTypeDef *phost, 
                                     uint8_t pipe, 
                                     uint8_t direction,
                                     uint8_t ep_type,  
                                     uint8_t token, 
                                     uint8_t* pbuff, 
                                     uint16_t length,
                                     uint8_t do_ping) 
{
  HAL_HCD_HC_SubmitRequest(phost->pData,
                           pipe, 
                           direction,
                           ep_type,  
                           token, 
                           pbuff, 
                           length,
                           do_ping);
  return USBH_OK;   
}

/**
* @brief  Gets a URB state from the low level driver.
* @param  phost: Host handle
* @param  pipe: Pipe index
*          This parameter can be a value from 1 to 15
* @retval URB state
*          This parameter can be one of these values:
*            @arg URB_IDLE
*            @arg URB_DONE
*            @arg URB_NOTREADY
*            @arg URB_NYET 
*            @arg URB_ERROR  
*            @arg URB_STALL      
*/
USBH_URBStateTypeDef USBH_LL_GetURBState(USBH_HandleTypeDef *phost, uint8_t pipe) 
{
  return (USBH_URBStateTypeDef)HAL_HCD_HC_GetURBState (phost->pData, pipe);
}

/**
* @brief  Drives VBUS.
* @param  phost: Host handle
* @param  state: VBUS state
*          This parameter can be one of these values:
*           0: VBUS Active 
*           1: VBUS Inactive
* @retval USBH Status
*/
USBH_StatusTypeDef USBH_LL_DriverVBUS(USBH_HandleTypeDef *phost, uint8_t state)
{
#ifdef USE_USB_FS
  if(state == 0)
  {
    HAL_GPIO_WritePin(OTG_FS1_POWER_SWITCH_PORT, OTG_FS1_POWER_SWITCH_PIN, GPIO_PIN_SET);
  }
  else
  {
    HAL_GPIO_WritePin(OTG_FS1_POWER_SWITCH_PORT, OTG_FS1_POWER_SWITCH_PIN, GPIO_PIN_RESET);
  }
#else
  if(state == 0)
  {
    HAL_GPIO_WritePin(OTG_HS1_POWER_SWITCH_PORT, OTG_HS1_POWER_SWITCH_PIN, GPIO_PIN_SET);
  }
  else
  {
    HAL_GPIO_WritePin(OTG_HS1_POWER_SWITCH_PORT, OTG_HS1_POWER_SWITCH_PIN, GPIO_PIN_RESET);
  }
#endif
  
  HAL_Delay(200);
  return USBH_OK;  
}

/**
* @brief  Sets toggle for a pipe.
* @param  phost: Host handle
* @param  pipe: Pipe index   
* @param  toggle: toggle (0/1)
* @retval USBH Status
*/
USBH_StatusTypeDef USBH_LL_SetToggle(USBH_HandleTypeDef *phost, uint8_t pipe, uint8_t toggle)   
{
  if(hhcd.hc[pipe].ep_is_in)
  {
    hhcd.hc[pipe].toggle_in = toggle;
  }
  else
  {
    hhcd.hc[pipe].toggle_out = toggle;
  }
  return USBH_OK; 
}

/**
* @brief  Returns the current toggle of a pipe.
* @param  phost: Host handle
* @param  pipe: Pipe index
* @retval toggle (0/1)
*/
uint8_t USBH_LL_GetToggle(USBH_HandleTypeDef *phost, uint8_t pipe)   
{
  uint8_t toggle = 0;
  
  if(hhcd.hc[pipe].ep_is_in)
  {
    toggle = hhcd.hc[pipe].toggle_in;
  }
  else
  {
    toggle = hhcd.hc[pipe].toggle_out;
  }
  return toggle; 
}

/**
  * @brief  Delay routine for the USB Host Library
  * @param  Delay: Delay in ms
  * @retval None
  */
void USBH_Delay(uint32_t Delay)
{
#if (USBH_USE_OS == 1)
  osDelay(Delay);
#else
  HAL_Delay(Delay);
#endif  
}

